Cell Relay Archive

["Rizal Mohd. Zin" <zrizal@telekom.com.my>]

Hi all,

I'm quite new to this newsgroup, so forgive me for any errors or omissions.
But, my two cents worth:

>From the view of a service provider, Sonet and DWDM are competing
technologies. Do you build a network on a fault-tolerant, proven (yet
limited in data rates) technology [i.e. Sonet] or do you go for something
which will offer you more capacity for your fiber and rides the trend to
move all communications to packet-based technology (i.e. DWDM).

Sonet when coupled with ATM appeals because of its stability and widely
agreed upon standards, but lately we have seen DWDM fighting back tooth and
nail.

Whereas before IP over Sonet or even DWDM was only a best-effort service,
the introduction of protocols like MPLS which offers higher quality of
service will make deploying DWDM as a high capacity backbone technology more
and more attractive as a technology.

Data traffic is fast taking over voice traffic, no doubt. The isochronous
nature of Sonet is fast making carriers switch to technologies which offer
higher bandwidth like DWDM.

When talking about switches which cannot handle the high capacity of DWDM,
Albert was right in saying that there aren't enough devices but companies
like Juniper, Foundry and Cisco are churning out terabit routers to meet
this demand.

Anyone else care to comment?
----- Original Message -----
Resent-From:     usenet@cell.onecall.net
From: <zombiesquad@onebox.com>
Sent: Saturday, April 22, 2000 12:04 PM
Subject: Sonet VS. DWDM


> All,
>
> I've done some research about sonet and dwdm.  I would like any input/
> insights on two issues that arose.
>
> 1 - Are sonet and dwdm competing technologies?  If so, where do you see
> sonet heading, will it be overtaken by dwdm?
>
> 2 - Is there a future for sonet technology?
>
> Thanks for any inputs.
>
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.